/*
 * Copyright (c) 2024.  little3201.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *       https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package com.server.starter.audit;

import org.springframework.data.domain.AuditorAware;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;

import java.security.Principal;
import java.util.Optional;

/**
 * auditor aware.
 *
 * @author wq li
 * @since 0.3.0
 */
public class AuditorAwareImpl implements AuditorAware<String> {

    /**
     * {@inheritDoc}
     */
    @Override
    public Optional<String> getCurrentAuditor() {
        return Optional.ofNullable(SecurityContextHolder.getContext())
                .map(SecurityContext::getAuthentication)
                .filter(Authentication::isAuthenticated)
                .map(Principal::getName);
    }
}
